A 6.9 magnitude earthquake hit Southern California following another quake on the Fourth of July

Business Insider

• An earthquake with a preliminary magnitude of 6.9 magnitude hit Southern California Friday evening, just one day after another massive quake (6.4 magnitude) hit the region on the Fourth of July.
• According to United States Geological Survey, the quake occurred shortly after 8 p.m. local time, with the epicenter 11 miles away from Ridgecrest, California, where the July 4 earthquake, which had a magnitude of 6.4, also originated.
• INSIDER reporters felt the building sway and creak, as light fixtures wobbled.
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An earthquake with a preliminary magnitude of 6.9 magnitude hit Southern California Friday evening, just one day after another massive quake (6.4 magnitude) hit the region on the Fourth of July.

According to United States Geological Survey, the quake occurred shortly after 8 p.m. local time, with the epicenter 11 miles away from Ridgecrest, California, where the July 4 earthquake, which had a magnitude of 6.4, also originated.

INSIDER reporters crouched under desks while building swayed and light fixtures wobbled.

Friday night's earthquake is now ranked the largest temblor in over 20 years, topping Thursday's quake as well as a 1994 quake in Northridge, which measured 6.6 magnitude.

California residents took to social media and tweeted out videos of what the quake looked like for them.

USGS reported a second earthquake with a 5.5-magnitude occurring just a little under 30 minutes after the first, rattling the area once again.

This is a developing story. INSIDER will update as more details become available.